Gage.



L. SCUSA.

GAGE. APPLICATION FILED JAN-24,1918.

1 ,279, 9 1 9 Patented Sept. 24, 1918..

WITNESSES L Lg BY M182 #aawcx ATTORNEY UNITED STATES PATENT OFFICE.

LINO SCUSA, OF ROCHESTER, NEW YORK, ASSIGNOR TO L. SCUSA MACHINE 8c TOOL00.,

IN (1., OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

GAGE.

Specification of Letters Patent.

Patented Sept. 24, 1918.

Application filed January 24, 1918. Serial No. 213,588.

To all whom it may concern:

Be it known that I, LINO SoUsA, a citizen of the United States, residingat Rochester, in the county of Monroe and State of New York, haveinvented certain new and useful Improvements in Gages, of which thefollowing is a specification. a

This invention relates to improvements in gages, designed for use bymachinists, toolmakers, and the like, and has for its object to providea snap gage particularly adapted for gaging manufactured or stockarticles, wherein the gages are adjusted and set and used for turningout a number of similar parts. A further object is to provide a gage ofthe class whichis capable of being set for accurately gaging andindicating the rough, as well as the finish cutsand sizes to thesmallest fraction of an inch. And a particular object is toprovidenovel, simple and positive means for readily, quickly andprecisely adjusting the several movable gage-parts, and for retainingthe various adjustments during the periods of work.

I attain these objects by the means set forth in the detaileddescription which follows, and as illustrated by the accompanyingdrawing, in which 7 a Figure 1 is aside elevation of the complete gage,withparts broken away to show one of the sev-eraladjusting parts.

F ig. 2 is a top View of the parts shown in Fig. 4.

Fig. 3 is a horizontal section, on line 3-3 of Fig. 4; showing the meansfor guiding V adjusting nut.

the gage-points. V

Fig. 4 is a vertical cross-section, taken on line4 4 of Fig. 2; showingthe adjusting, retaining and guiding means on an enlarged scale." i v 1Fig. 5 is a perspective view of the split In the drawing, Qrepresentsthebody of the gage, which "is preferably in the form of a horse-shoe,having similar arms 3 and 4. Each of said arms is provided withtwo ormore gage-members, as 67, and 6 -7, the corresponding members beingdisposed in the respective arms concentrically. The gage-rnembers 67 and6'7, are all pref- 11, which is engaged by a pin or stud 12,

the latter being preferably driven tightly into the arm 4. The slot 11is preferably so positioned that it does not at any time show beyond thebody, in order to exclude dust and dirt from entering the same. This pinand slot construction prevents the rotation of the gage-member, butallows the said member to be moved endwise during the adjustments. Eachgage-member is bored out centrally for a part of its length, and thesaid boreis threaded, as indicated at 13, to reccivea looking-screw 14.

15 represents a split expansible screwthreaded' sleeve, externallythreaded, which screws into the threaded end of the bore 10, and thesaid sleeve is employed forvmoving and regulating the adjustment of thegagemember. The sleeve 15 has a screw-driver slot 15 in its outer end,and is also counterbored, as at 16, to receive the head of thelocking-screw 14, while the body of said screw passes loosely through ahole 17 which is concentric'to the threaded hole or socket 13of thegage-member, as well-as to the counterbore 16 of thesleeve 15. The headofthe screw 14, and the inner end of the counterbore 16 are.correspondingly tapered or beveled, preferably at about 60 to the end ofthe screw. The head of screw 14 has. the usual screw-driver slot 18.

The operation of my improved gage-member adjusting andlocking means isas follows: To change or readjust one of the gage-members, as 7, inonedirection, the operator takes a screw-driver, inserts it in thecounterbore 16 and unscrews the screw v14 about one turn He thenunsorews the remain in the latter position.

The final operation consists of tightening up the screw 14, which drawsthe gage-member tightly against the inner end of the sleeve 15, and atthe same time the tapering head of said screw expands the split sleeve15 until it becomes t-ightand immovable in the bore 10. To adjust thegage-member in the opposite direction, the operator first unscrews thescrew 14- sufiiciently to allow the sleeve 15 to contract and becomeloose, then he screws the sleeve 15 inwardly, which forces thegage-member out of the hole 10 until the proper adjustment isaccomplished. The screw 14 is then screwed up tightly for expanding thesleeve 15 and again drawing the gage-member and sleeve tightly together,in which condition the par-ts remain until a new adjustment is required.After the gage is properly adjusted, as described, the hollow space orcavity, as 16', at the outer end of the sleeve 15 is preferably filledwith wax or like substance for temporarily concealing the sleeve, andthus preventing tampering, or accidental changing of the adjustments ofthe gage members.

Where but a slight adjustment is required, only the gage-member carriedby one of the arms of the body need be changed. In case the adjustmentof the gage is to be greatly increased or decreased, the gage-members ofboth'of the arms 3 and 4 of the body may be changed, as described.

Themeans herein shown and described for eiiecting the adjustment of theseveral gage-members are extremely simple, convenient and positive, andenable mechanics to readily and accurately adjust the device for gagingclose and fine work, and to preserve or retain such adjustmentsindefinitely.

It is obvious that some changes or modifications of the parts may bemade within the scope defined by the appended claims with out departingfrom the spirit of the i1 vention.

, Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, 'is.-

1. .In a gage, a reciprocable gage-member, a split screw threaded sleevealining with and adapted to reciprocate said gage-member and alocking-screw provided with a tapering head pivotally connecting saidgage-member and said sleeve and adapted to expand said sleeve forholding said gagemember in adjusted positions. r

2. In a gage, a gage-member having a threaded socket, a locking-screwprovided Gepies or this patent may be ebtained for with a tapering headengaging said socket, and a split adjusting sleeve disposed in line andin engagement with said gage-member havinga counterbore to receive thehead of said screw.

3, In a gage, a gage-member having a threaded socket, an expansiblescrewthreaded sleeve alining with said member having a counterboreconcentric to said socket, and a locking screw passing through saidsleeve and screwed into said socket and adapted to expand said sleevefor preventing change of the adjustment of said memher.

4;. In a gage, a plurality of gage-members having threaded socketsarranged in pairs alining and movable toward and away from each other,a'split screw threaded adjusting SlQGXG associated with eachgage-member, and a screw provided with a tapering head, passing througheach sleeve and engaging the socket in the corresponding gage-member andadapted to draw and hold the gagemember and sleeve tightly together, thehead of said screw positioned in the sleeve and adapted to expand thesleeve for preventing accidental movement of the gagemember.

5., In a gage, a cylindrical gage-member having a threaded socket and anexternal guide-slot, a pin engaging said slot for preventing rotation ofsaid member, a' split screw threaded sleeve disposed in line and inengagement with one end of said member and having a counterbore and alocking screw provided with a tapering head pivotally connecting saidgage member and said sleeve, the head of said screw disposed in thecounterbore of said sleeve and adapted to expand said sleeve for holdingsaid gage member in adjusted )ositions.

6. In a gage, a cy indrical gage-member having a threaded socketand anexternal guide slot concealed in the body of the gage, a split screwthreaded sleeve having a tapering counterbore disposed concentric to andin engagement with one end of said gage member, a locking screw having atapering head pivotally connectingsaidgage memher and said sleeve, thehead of said screw disposed in the tapering counterbore in said sleeveand adapted to expand said sleeve for holding said gage member inadjusted positions, and a pin engaging the slot in said gage member forpreventing the rotation of said gage member.

In testimony whereof I afiix mysignature.

, LINO sousa.

five cents eachylgy addressing the .commi ssioner of Patents,Washington, I). (3.

